FENIX IMVICO SM2000 OPERATION MANUAL
13/65
2.3- RS-232 SERIAL INTERFACE
2.3.1- RS-232 Serial interface specifications
•
Data transmission type:
Serial
•
Synchronization:
Asynchronous
•
Flow control:
DTR/DSR control or XON/XOFF
•
Signal levels (RS232):
MARK = -3 to -15 V
Logic ‘1’/OFF
SPACE = +3 to +15 V
Logic ‘0’/ON
•
Speed:
4800, 9600, 19200, 38400 bps (bps: bits per second)
•
Data length:
7-8 bits
•
Parity:
none, even, odd
•
Stop bits:
Fixed to 1
•
Connector (printer side):
SUB-D25 female pin connector (SM2000-S)
SUB-D9 male pin connector (SM2000-U)
NOTE:
(1) Data length, speed and parity depend on the DIP switches settings (refer to section 3.3.4).
2.3.2- Change between online and offline mode
The printer is in offline mode:
1) When powering up or resetting the printer, until the printer is ready to receive data.
2) When performing the self-test.
3) When the cover is open.
4) After pressing the Paper feed button (FEED) while the paper advances.
5) When ‘out of paper’ causes the printer to stop printing.
6) During macro execution in standby mode.
7) When the power supply has a temporal abnormal voltage change.
8) When an error has occurred.
2.3.3- Assignments of RS-232 connector terminals
The assignments of the terminals of the RS-232 connector and the functions of its signals are described
in the following table:
Pin
SUB-D9
Pin
SUB-D25
Signal
name
Signal
direction (from
the printer
point of view)
Function
-
1
FG
-
Frame ground
3
2
TXD
Output
Data transmission
2
3
RXD
Input
Data reception
7
4
RTS
Output
Same as DTR signal
6
6
DSR
Input
This signal indicates whether the host system is ready to
receive data.
When the XON/ XOFF control is selected, the printer does
not check this signal.
5
7
SG
-
Signal ground.